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Turbidite
Turbidite
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Samples
Conceptually similar
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Turbidite
Turbidites are the preserved products of turbidity flows. Turbidity flows have three main components: a high energy head that does most of the erosion, a body that carries the majority of the sediment and can erode and deposit as well. Finally, the low energy tail that deposits the last of the suspended sediment. There are two main types of turbidites: high and low density. Low-density turbidites have thinner beds, finer grains, and well-developed traction structures that show a shift from high to low energy upwards. High-density turbidites have thicker beds, are coarser-grained and are usually structureless. Turbidites get deposited when flow loses energy, and the coarser grains settle out first, followed by the fine grains, reflecting the gradual decrease in energy. The Bouma sequence describes the ideal succession left behind by a turbidity current. First, sand (light-coloured grains) is deposited, followed by silt and sand, then mud (darker grains). This sequence is also described as fining-upward. Environments prone to turbidity flows will commonly show repetition of this sequence, which indicates the relative time of deposition between flow events.
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Digitized Date
10/01/2018
Creator
Dolphin, Glenn
Unique identifier
CU1STO7081
Location
Country
Canada
Province
Alberta
Municipality
City of Calgary
How can you use these images?
Permitted uses are outlined in License and Usage Rights. Usage Restrictions can only be waived by the copyright holder. Add to cart and make a request if you have any questions.
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In Copyright
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Conditions of Use
https://libanswers.ucalgary.ca/faq/199047
License URL
https://creativecommons.org/licenses/by/4.0
License
CC BY 4.0
Attribution
Attribution
"Turbidite", unknown date, (CU1STO7081) by Dolphin, Glenn. Courtesy of Geoscience Images Collection, Libraries and Cultural Resources Digital Collections, University of Calgary.